In which year did this American pioneering mountaineer and writer, after whom this scattering of glaciers and snowfields located on the southern flank of Mount Rainier in Washington was named, climb Mount Rainier?
1870
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Van Trump Glacier
11280414
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Section::::Abstract.
Van Trump Glacier
11280414
-1
Section::::Abstract.
P. B. Van Trump
9450970
-1
Section::::Abstract.
P. B. Van Trump
9450970